Refactor Dockerfile and Packer configuration: update paths for packag…

…e installation and add explicit copy for template_automation

Dockerfile

@@ -1,17 +1,25 @@
+# DEPRECATED: This Dockerfile is not used for deployment.
+# Lambda container image is built using Packer (see packer.pkr.hcl)
+# ----------------------------------------------------------------
+# Keeping this file for reference only
+
 FROM public.ecr.aws/lambda/python:3.11
 
 # Copy requirements first to leverage Docker cache
 COPY requirements.txt /tmp/
-RUN pip install --no-cache-dir -r /tmp/requirements.txt -t ${LAMBDA_TASK_ROOT}
+RUN pip install --no-cache-dir -r /tmp/requirements.txt -t /var/task
 
 # Copy all code files for package installation
 COPY . /tmp/app/
 
 # Install the package in development mode to make it available to Python
-RUN pip install -e /tmp/app -t ${LAMBDA_TASK_ROOT}
+RUN pip install -e /tmp/app -t /var/task
+
+# Explicitly copy the template_automation package to the Lambda task root
+COPY template_automation /var/task/template_automation/
 
 # Copy the root app.py file (this is essential for AWS Lambda to find the handler)
-COPY app.py ${LAMBDA_TASK_ROOT}/
+COPY app.py /var/task/
 
 # Ensure the Lambda handler is correctly set
 CMD [ "app.lambda_handler" ]

packer.pkr.hcl

@@ -59,6 +59,9 @@ build {
       "echo '=== Copying app.py to task root ==='",
       "cp /tmp/app.py /var/task/",
 
+      "echo '=== Explicitly copying template_automation package directory ==='",
+      "cp -r /tmp/template_automation /var/task/",
+
       "echo '=== Listing installed Python packages ==='",
       "pip3 list",